Butterfly flight seasons in New Jersey from 60,981 research-grade iNaturalist observations. August has the most activity.
By month
New Jersey butterfly calendar (top 40)
Fewer More observations (relative to each row's peak month)
Activity by month (all species)
Most-photographed butterflies in New Jersey
Monarch
Eastern Tiger Swallowtail
Huron Skipper
Small White
Silver-spotted Skipper
Spicebush Swallowtail
Zabulon Skipper
Common Buckeye
Black Swallowtail
Eastern Tailed-Blue
Red Admiral
American Lady
Red-banded Hairstreak
Pearl Crescent
Peck's Skipper
Variegated Fritillary
